Scoring machine



July 5, 1927.

5mm RI \7 WTOR 6611414.

ATTORNEY July 19 v J. F. PETERS "SCORING MACHINE Filed Jan. n. 1924 vJShqets-Sheet 2 W I? 1/! TTORNL'Y Patented July 5, 927.

STAT-ES,

JOHN F; rnrnns. or noonnsrnn, NEW YORK,

ASSIGNOR TO AMERICAN CAN COMPANY,

"OF YORK; N. Y'. A CORPORATION OF NEW JERSEY.

soonnve MACHINE.

Application filed ianuary 11, 1924. Serial INA/685,628..

My invention relates to scoring machines adapted to operate upon sheetnietalblanks prior to the for ination ofa container body, or the like,therefrom.

1 In accordance wi the can niaking art, 'itfis frequently required 'toperform a plurality of scoring operations upon the blank andpreferably,also, a smoothing operation to reinove any irregularities in-the metalsurface which have been caused the scoring-rollers. r101 es.-a1nple,containers provided with a tear i-ng striprequire parallel scoreline's. setting off atearing strip, and it is also desirable to providediagonal supplemental parallehor herringbone, score lines between theparallel lines for the purposeof insuring the tearing of the. stripalong said'parallel lines. It was formerly the'practice to perfdifferent scoring operations. in different machines, but prior to inyinvention certain machines have been developed for; oerforrning aplurality of scoring operatic s upon In the inacl nes of an individualblank. which I am aware, however, the blank is engaged bydifferentoperation rollers at the same time and in such case it-is.necessary that said rollers be of exactly the same diameter in order toprevent variation in the peripheral speed thereof with resultantvariations in the lineal speedirnparted to the blank by the differentrollers. This causes adragging action between the scoring elements,seriously affecting the eficienc'y of operation. I

It he principal. object of this invention to provide a lnultipleoperation scoring machine in which the scoring units are so re lated astofeliminate the dragging action,jreferred to above, in the event thatthe rollers of the different units-are not of precisely the samediameter. The invention contemplates in this connection the arrangementofd'l'lferent setslof scoring rollersinsuch spaced relationship that theblank is completely freed from one set before being engaged byanother. lf 1 A further important feature .ofthe invention is that, withthescoring elements so arranged, the blank may be inspected betweenoperationsand removed from the machine, if desired, for this purpose. f

Another object is the provision,"in a machine of the mu'ltiple operationvtype, of

th present practice .in

means for accelerating the lineal speed of the.

blank, as it passes from one set of rollers to the other, thuspreventing the. possibility overlapping of successive blanks [whichmight be fed into the machine at onetime,

Numerous other objects and ac'vantagesbf the invention will be apparentas it is "better understood-from the following description,

which, takenfin-connection with the accome;

discloses a preferred e n panying drawings, bodiment thereof. IReferring to the drawings,

7 Figure 1 is a front elevation of a niachine in which my invention isembodied, partly broken away for" better illustration Fig. 2 is a topplan view thereof;

Fig. 3' is a sectional, View, an: t'ially on the line 33 in Fig. 2';

- "Fig. 4 is an end elevation, partially broken away y and Fig. 5 is avertical sectional view, taken substantially 0n the line 5 5 in Fig.1.

The machine as thus illustrated comprises anelongated bed plate 21 uponwhich are mounted, 1n the presen't instance, three sc orl ing heads .22carrying scoring rollers and op era ting mechanism as will behereinafter described, said bed being supported ,bysuit able legs23"connected together bytie rods 24. 'Each'. head 22 is provided with abase portion 25 resting upon the bed "plate 21 and consists of anupwardly extending. body 26 havinga web 27 extending rearwarcllythe-refrom'and spaced forward walls 28 con. verging at the top andproviding bearings 29 and 31 for a shaft- 32 (see Figs. 1 and 7 A feedroller 33 is carried upon each shaft it being'understoo'd that there areprovided anumber of's'aid shafts equal to the number' of scoring'unitsin the. machine, which.

number, of course, may be varied in accord- 10 en substan" ance with thenumber of scoring o'ierations required. Theshafts 32 extend ijearwardlythrough bear ngportions 3 and 35 in the head's'22 and upon thefirst-shaft 32. i. e,

the one at the right in'Fig. 1, there is car-v riedfa, pulley 36 adaptedto be driven. from any suitable source of power. A. supple} mentalbearing 37 is providedfor said shaft in a bracket 38 supported by anextension 39 of the bed 'plat'e21 Upon. said first shaft 32, there ismounted a sprocket ll over which'is directed a chain 42 taking also overa sprocket 13 on the adjacent shaft 32. A

Y accurate tea-ring away of the strip.

shafts 32 are of smaller diameter than the driving sprockets on thepreceding shafts. this being for a purpose which will hereinafterappear.

Spur gears r? are carried on the rear ends of the shafts 32 and meshwith gears 18 on shafts 49 arranged above and in parallel relationshipto said shafts 'lhe shafts e9 have bearings 51 and 52 in the heads 22and also extend through bearings and 5a in overhanging portions 55 ofsaid heads. Operation rollers 56are mounted on the forward ends of theshafts 4:9 and are disposed for rotation in recesses 5? formed 'in theoverhanging portions of the heads Said rollers, of course, may bedesigned to perform any desired scoringbperation, the present machine,however, being adapted for the cutting of the parallel score lines in atearing strip container and diagonal score lines between the parallellines, to insure The first operation scoring roller is shown clearly inFig. A and is provided with parallel cutting edges 58. 'lhe secondoperation roller is shown in Fig. 5 and is provided with diagonalcutting edges 59. The third operation roller is, in the presentinstance, a smoothing roller adapted to flatten out any burrs, orirregularities, caused by the action of the scoring rollers.

It will be noted that the scoring units are spaced a considedabledistance apart and, on this account, the blanks are completely freedfrom one set of rollers before being engaged by another. For the purposeof feeding the blanks from one unit to another, I provide feedingrollers 61 and 62, the former being mounted'upon shafts 63, carryingsprockets 6 1 at their rear ends adapted to be driven respectively bythe chains 12 and Said shafts 63 have hearings in brackets 65 extendingupwardly from the bed plate 21. lhe rollers 62 are mounted upon studs 66journaled in bearings 67 extending upwardly from the brackets 65. Chaintightening sprockets 68 are mounted on studs 69 in the ends of arms 71extending laterally from the rear brackets 65.

A feed table 72 is supported from the heads 22 by means of arms 73having tongue and slot connections 7 1 with projections 75 on the bodies26, said arms 73 being secured firmly in place by cap screws 76.

A guide 77 is provided on the rear side of the table 72 and it will bemanifest that when the blanks aredirected across said table, with theinner edges thereof against said guide, they will be accurately directedbetween the feeding and operation rollers.

Said table 72 is formed in sections, as shown in Fig. 1, in order toprovide a proper length for the desired number of scoring units 22. Atthe receiving end of the table, I provide an extension 78 supported by abracket 7 9 secured to the end of and extendwardly by said rollers andby thefeeding rollers Gland 62. In order to prevent overlapping of thesheets, due to improper feed ing, the rollers of each successive scoringunit are driven at a more rapid rate of speed than those of thepreceding unit, this being accomplished by the relative size of thedriving and driven sprockets on the shafts 32, as hereinbeforedescribed.

It is thought that the invention and many of its attendant advantageswill be under stood from the foregoing description, and it will beapparent that various changes may be made in the form, construction andarrangement of the parts, without departing from the spirit and scope ofthe invention, or sacrificing all of its material advantages, the formhereinbefore described being merely a preferred embodiment thereof.

1 claim:

1. A scoring machine, comprising a plurality of successive scoringunitsconstructed for cutting only part way through sheets of metal anddisposed in such spaced relation ship as to permit a blank to be freedfrom one unit before being engaged by another, and blank-feeding meansfor directing the blanks to said scoring units and arranged be tweeneach scoring unit and the next succeeding scoring unit. a

2. A scoring machine, comprising a plurality of successive sets ofscoring rollers constructed for cutting only part ,way through sheets ofmetal anddisposed in such spaced relationship as to permit a blank to befreed from one of said sets of rollersbefore being engaged by anotherset," and blank-feeding means for directing the blanks while disengagedfrom. the preceding and succeeding s'coring rollers, to said sets ofscoring rollers.

3. A scoring machine, comprising a plu- *ality of sets of scoringrollers constructed for cutting'only part way through sheets of metaland disposed in such spaced relationship as to permit a blank to befreed from one of said sets of rollers before being engaged by anotherset, and means for feeding the blanks during the scoring operation andfrom one set of scoring rollers to another.

4. A scoring machine, comprising a plurality of sets of scoring rollersconstructed for cutting only part way through sheets of metal anddisposed in such spacedrelationship as to permit a'bla-nk to be freedfrom one of said sets of rollers before being engaged by another set,and means for feeding the blanks during the scoring operation and fromone set of scoring rollers to another, said means comprising feedingrollers disposed beneath the scoring rollers and feeding rollersdisposed intermediate said scoring rollers.

5. A scoring machine, comprising a plurality of rollers constructed forcutting only part way through sheets of metal and adapted tosuccessively perform different operations on a' blank, said rollersbeing so related that a preceding operation'is completed before a laterone is begun, and feeding rollers between preceding and succeedingoperation rollers.

6. A scoring machine, comprising a plurality of rollers constructed forcutting only part way through sheets of metal and adapted tosuccessively perform different operations on a blank, said rollers beingso related that a preceding operation is completed before a later one isbegun, and feeding means associated with each operation roller, andfeeding means between said operation rollers.

7. A scoring machine, comprising a plurality of rollers constructed forcutting only part way through sheets of metal and adapted tosuccessively perform different operations on a blank, said rollers beingso related that a preceding operation is completed 40 before a later oneis begun, and feeding means associated with each operation roller, saidfeeding means comprising rollers having progressively accelerated speedof rotation. 8. A scoring machine, comprising a plurality of rollersadapted to successively perform different operations on a blank, saidrollers being so related that a preceding operation is completed beforea later one is begun, and feeding means associated with each operationroller, said feeding means comrising rollers having progressivelyaccelerated speed of rotation and feeding rollers arranged between thedifferent operation rollers.

9. Ascoring machine, comprising a plurality of rollers adapted tosuccessively perform different operations on a blank, said rollers beingso related that a preceding operation is completed before a later one isbegun, and feeding means associated with each operation roller, saidfeeding means comprising rollers having progressively accelerated speedof rotation and feeding rollers arranged between the dilferent operationrollers and in advance of the first thereof.

10. A scoring machine, comprising a plurality of spaced scoring unitsconstructed for cutting only part way through sheets of metal, each unitincluding a feeding roller. shafts upon which said rollers aremountedand means for driving each successive shaft more rapidly than thepreceding one to accelerate the travel of the blanks from station 75 tostation through the machine.

JOHN F. PETERS.

